KX450F front caliper

Lukass59
Profile picture for user Lukass59
Posts
622
Joined
12/12/2014
Location
Jacksonville, OR US
Lukass59
Edited Date/Time 9/20/2019 1:31pm
Does anyone know if the front caliper from a 2018 KX450F would fit a 2019?

Retro fit a set of 2019 KX450F forks on my kx250 so hopping 18 brakes will fit as they’re a lot cheaper on eBay
|
kb228
Profile picture for user kb228
Posts
6161
Joined
1/31/2018
Location
Mansfield, OH US
kb228 9/20/2019 4:43am
9/20/2019 4:43am
Dont think so. I think the only things that fit from the older gens is the fender and number plate.
dmm698
Profile picture for user dmm698
Posts
920
Joined
6/24/2015
Location
NY US
dmm698 9/20/2019 6:03am
9/20/2019 6:03am Edited Date/Time 9/20/2019 6:04am
kb228 wrote:
Dont think so. I think the only things that fit from the older gens is the fender and number plate.
Calipers are the most common part across like every bike, with the exception of KTM. With the proper carrier bracket i'm confident that 99% of calipers from any bike will fit another bike.

It looks like you installed the forks on an older 2 stroke. I would intentionally buy a 2018 and older caliper, as it will be better paired to the master from that bike. The 2019 master is different, and I suspect the plunger diameter has changed (along with the whole linkage mechanism to the lever). I love the 19 brake setup so much on my 19kx that I installed a 19 master cylinder on my yz250 2 stroke.

Anyways, it really depends on what size disc you want to run. To make life easy, buy a 2018 caliper, and the 2018 carrier if its not already included with whatever used caliper you're buying. You'll need a 270 rotor for this setup. I'm assuming your running a 2019 front wheel (or at least the 2019 hub)? The 19 axle diameter is larger, so you will need a 19 kx450 hub specifically or a complete wheel if you dont want to lace a wheel. You could run a smaller ID wheel bearing to use an old axle but it wont fit the fork lugs properly obviously.

If you really are that concerned I can grab an old 250mm front brake caliper from an older kawi laying in my garage and mount it to my 19 fork, i'd be willing to bet the house it'll fit.
Lukass59
Profile picture for user Lukass59
Posts
622
Joined
12/12/2014
Location
Jacksonville, OR US
Lukass59 9/20/2019 6:15am
9/20/2019 6:15am
kb228 wrote:
Dont think so. I think the only things that fit from the older gens is the fender and number plate.
dmm698 wrote:
Calipers are the most common part across like every bike, with the exception of KTM. With the proper carrier bracket i'm confident that 99% of calipers...
Calipers are the most common part across like every bike, with the exception of KTM. With the proper carrier bracket i'm confident that 99% of calipers from any bike will fit another bike.

It looks like you installed the forks on an older 2 stroke. I would intentionally buy a 2018 and older caliper, as it will be better paired to the master from that bike. The 2019 master is different, and I suspect the plunger diameter has changed (along with the whole linkage mechanism to the lever). I love the 19 brake setup so much on my 19kx that I installed a 19 master cylinder on my yz250 2 stroke.

Anyways, it really depends on what size disc you want to run. To make life easy, buy a 2018 caliper, and the 2018 carrier if its not already included with whatever used caliper you're buying. You'll need a 270 rotor for this setup. I'm assuming your running a 2019 front wheel (or at least the 2019 hub)? The 19 axle diameter is larger, so you will need a 19 kx450 hub specifically or a complete wheel if you dont want to lace a wheel. You could run a smaller ID wheel bearing to use an old axle but it wont fit the fork lugs properly obviously.

If you really are that concerned I can grab an old 250mm front brake caliper from an older kawi laying in my garage and mount it to my 19 fork, i'd be willing to bet the house it'll fit.
No that’s fine thanks! Really was just wanting to get a 2017/2018 brake set up because they’re way cheaper and easier to come by. And ya I have a 19 axel and spacers ordered and wheels.
DB97
Profile picture for user DB97
Posts
1165
Joined
7/28/2016
Location
Orlando, FL US
DB97 9/20/2019 8:28am
9/20/2019 8:28am
I have the 19 forks on my 125. Using a motostuff 280 rotor and oem caliper they fit fine. I have a 19 master cylinder I'm going to use with the new motostuff caliper eventually.

The Shop

See All »
Lukass59
Profile picture for user Lukass59
Posts
622
Joined
12/12/2014
Location
Jacksonville, OR US
Lukass59 9/20/2019 1:31pm
9/20/2019 1:31pm
DB97 wrote:
I have the 19 forks on my 125. Using a motostuff 280 rotor and oem caliper they fit fine. I have a 19 master cylinder I'm...
I have the 19 forks on my 125. Using a motostuff 280 rotor and oem caliper they fit fine. I have a 19 master cylinder I'm going to use with the new motostuff caliper eventually.
Thanks for the info
Lukass59
Profile picture for user Lukass59
Posts
622
Joined
12/12/2014
Location
Jacksonville, OR US
Lukass59 9/20/2019 1:31pm
9/20/2019 1:31pm
Your 125 looks badass by the way
DB97
Profile picture for user DB97
Posts
1165
Joined
7/28/2016
Location
Orlando, FL US
DB97 9/20/2019 1:32pm
9/20/2019 1:32pm
Lukass59 wrote:
Your 125 looks badass by the way
Thanks

Post a reply to: KX450F front caliper